Portion of a shoe



FIG. 1 is a perspective view of a portion of a shoe showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

The uneven broken line showing of the remainder of the shoe is for illustration purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe, as shown and described. 